1 //===-- CommandObjectWatchpointCommand.cpp ----------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // C Includes 11 // C++ Includes 12 #include <vector> 13 14 // Other libraries and framework includes 15 // Project includes 16 #include "CommandObjectWatchpoint.h" 17 #include "CommandObjectWatchpointCommand.h" 18 #include "lldb/Breakpoint/StoppointCallbackContext.h" 19 #include "lldb/Breakpoint/Watchpoint.h" 20 #include "lldb/Core/IOHandler.h" 21 #include "lldb/Host/OptionParser.h" 22 #include "lldb/Interpreter/CommandInterpreter.h" 23 #include "lldb/Interpreter/CommandReturnObject.h" 24 #include "lldb/Interpreter/OptionArgParser.h" 25 #include "lldb/Target/Target.h" 26 #include "lldb/Target/Thread.h" 27 #include "lldb/Utility/State.h" 28 29 using namespace lldb; 30 using namespace lldb_private; 31 32 //------------------------------------------------------------------------- 33 // CommandObjectWatchpointCommandAdd 34 //------------------------------------------------------------------------- 35 36 // FIXME: "script-type" needs to have its contents determined dynamically, so 37 // somebody can add a new scripting 38 // language to lldb and have it pickable here without having to change this 39 // enumeration by hand and rebuild lldb proper. 40 41 static OptionEnumValueElement g_script_option_enumeration[4] = { 42 {eScriptLanguageNone, "command", 43 "Commands are in the lldb command interpreter language"}, 44 {eScriptLanguagePython, "python", "Commands are in the Python language."}, 45 {eSortOrderByName, "default-script", 46 "Commands are in the default scripting language."}, 47 {0, nullptr, nullptr}}; 48 49 static OptionDefinition g_watchpoint_command_add_options[] = { 50 // clang-format off 51 { LLDB_OPT_SET_1, false, "one-liner", 'o', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeOneLiner, "Specify a one-line watchpoint command inline. Be sure to surround it with quotes." }, 52 { LLDB_OPT_SET_ALL, false, "stop-on-error", 'e', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeBoolean, "Specify whether watchpoint command execution should terminate on error." }, 53 { LLDB_OPT_SET_ALL, false, "script-type", 's', OptionParser::eRequiredArgument, nullptr, g_script_option_enumeration, 0, eArgTypeNone, "Specify the language for the commands - if none is specified, the lldb command interpreter will be used." }, 54 { LLDB_OPT_SET_2, false, "python-function", 'F', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypePythonFunction, "Give the name of a Python function to run as command for this watchpoint. Be sure to give a module name if appropriate." } 55 // clang-format on 56 }; 57 58 class CommandObjectWatchpointCommandAdd : public CommandObjectParsed, 59 public IOHandlerDelegateMultiline { 60 public: 61 CommandObjectWatchpointCommandAdd(CommandInterpreter &interpreter) 62 : CommandObjectParsed(interpreter, "add", 63 "Add a set of LLDB commands to a watchpoint, to be " 64 "executed whenever the watchpoint is hit.", 65 nullptr), 66 IOHandlerDelegateMultiline("DONE", 67 IOHandlerDelegate::Completion::LLDBCommand), 68 m_options() { 69 SetHelpLong( 70 R"( 71 General information about entering watchpoint commands 72 ------------------------------------------------------ 73 74 )" 75 "This command will prompt for commands to be executed when the specified \ 76 watchpoint is hit. Each command is typed on its own line following the '> ' \ 77 prompt until 'DONE' is entered." 78 R"( 79 80 )" 81 "Syntactic errors may not be detected when initially entered, and many \ 82 malformed commands can silently fail when executed. If your watchpoint commands \ 83 do not appear to be executing, double-check the command syntax." 84 R"( 85 86 )" 87 "Note: You may enter any debugger command exactly as you would at the debugger \ 88 prompt. There is no limit to the number of commands supplied, but do NOT enter \ 89 more than one command per line." 90 R"( 91 92 Special information about PYTHON watchpoint commands 93 ---------------------------------------------------- 94 95 )" 96 "You may enter either one or more lines of Python, including function \ 97 definitions or calls to functions that will have been imported by the time \ 98 the code executes. Single line watchpoint commands will be interpreted 'as is' \ 99 when the watchpoint is hit. Multiple lines of Python will be wrapped in a \ 100 generated function, and a call to the function will be attached to the watchpoint." 101 R"( 102 103 This auto-generated function is passed in three arguments: 104 105 frame: an lldb.SBFrame object for the frame which hit the watchpoint. 106 107 wp: the watchpoint that was hit. 108 109 )" 110 "When specifying a python function with the --python-function option, you need \ 111 to supply the function name prepended by the module name:" 112 R"( 113 114 --python-function myutils.watchpoint_callback 115 116 The function itself must have the following prototype: 117 118 def watchpoint_callback(frame, wp): 119 # Your code goes here 120 121 )" 122 "The arguments are the same as the arguments passed to generated functions as \ 123 described above. Note that the global variable 'lldb.frame' will NOT be updated when \ 124 this function is called, so be sure to use the 'frame' argument. The 'frame' argument \ 125 can get you to the thread via frame.GetThread(), the thread can get you to the \ 126 process via thread.GetProcess(), and the process can get you back to the target \ 127 via process.GetTarget()." 128 R"( 129 130 )" 131 "Important Note: As Python code gets collected into functions, access to global \ 132 variables requires explicit scoping using the 'global' keyword. Be sure to use correct \ 133 Python syntax, including indentation, when entering Python watchpoint commands." 134 R"( 135 136 Example Python one-line watchpoint command: 137 138 (lldb) watchpoint command add -s python 1 139 Enter your Python command(s). Type 'DONE' to end. 140 > print "Hit this watchpoint!" 141 > DONE 142 143 As a convenience, this also works for a short Python one-liner: 144 145 (lldb) watchpoint command add -s python 1 -o 'import time; print time.asctime()' 146 (lldb) run 147 Launching '.../a.out' (x86_64) 148 (lldb) Fri Sep 10 12:17:45 2010 149 Process 21778 Stopped 150 * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = watchpoint 1.1, queue = com.apple.main-thread 151 36 152 37 int c(int val) 153 38 { 154 39 -> return val + 3; 155 40 } 156 41 157 42 int main (int argc, char const *argv[]) 158 159 Example multiple line Python watchpoint command, using function definition: 160 161 (lldb) watchpoint command add -s python 1 162 Enter your Python command(s). Type 'DONE' to end. 163 > def watchpoint_output (wp_no): 164 > out_string = "Hit watchpoint number " + repr (wp_no) 165 > print out_string 166 > return True 167 > watchpoint_output (1) 168 > DONE 169 170 Example multiple line Python watchpoint command, using 'loose' Python: 171 172 (lldb) watchpoint command add -s p 1 173 Enter your Python command(s). Type 'DONE' to end. 174 > global wp_count 175 > wp_count = wp_count + 1 176 > print "Hit this watchpoint " + repr(wp_count) + " times!" 177 > DONE 178 179 )" 180 "In this case, since there is a reference to a global variable, \ 181 'wp_count', you will also need to make sure 'wp_count' exists and is \ 182 initialized:" 183 R"( 184 185 (lldb) script 186 >>> wp_count = 0 187 >>> quit() 188 189 )" 190 "Final Note: A warning that no watchpoint command was generated when there \ 191 are no syntax errors may indicate that a function was declared but never called."); 192 193 CommandArgumentEntry arg; 194 CommandArgumentData wp_id_arg; 195 196 // Define the first (and only) variant of this arg. 197 wp_id_arg.arg_type = eArgTypeWatchpointID; 198 wp_id_arg.arg_repetition = eArgRepeatPlain; 199 200 // There is only one variant this argument could be; put it into the 201 // argument entry. 202 arg.push_back(wp_id_arg); 203 204 // Push the data for the first argument into the m_arguments vector. 205 m_arguments.push_back(arg); 206 } 207 208 ~CommandObjectWatchpointCommandAdd() override = default; 209 210 Options *GetOptions() override { return &m_options; } 211 212 void IOHandlerActivated(IOHandler &io_handler) override { 213 StreamFileSP output_sp(io_handler.GetOutputStreamFile()); 214 if (output_sp) { 215 output_sp->PutCString( 216 "Enter your debugger command(s). Type 'DONE' to end.\n"); 217 output_sp->Flush(); 218 } 219 } 220 221 void IOHandlerInputComplete(IOHandler &io_handler, 222 std::string &line) override { 223 io_handler.SetIsDone(true); 224 225 // The WatchpointOptions object is owned by the watchpoint or watchpoint 226 // location 227 WatchpointOptions *wp_options = 228 (WatchpointOptions *)io_handler.GetUserData(); 229 if (wp_options) { 230 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 231 new WatchpointOptions::CommandData()); 232 if (data_ap) { 233 data_ap->user_source.SplitIntoLines(line); 234 auto baton_sp = std::make_shared<WatchpointOptions::CommandBaton>( 235 std::move(data_ap)); 236 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 237 } 238 } 239 } 240 241 void CollectDataForWatchpointCommandCallback(WatchpointOptions *wp_options, 242 CommandReturnObject &result) { 243 m_interpreter.GetLLDBCommandsFromIOHandler( 244 "> ", // Prompt 245 *this, // IOHandlerDelegate 246 true, // Run IOHandler in async mode 247 wp_options); // Baton for the "io_handler" that will be passed back into 248 // our IOHandlerDelegate functions 249 } 250 251 /// Set a one-liner as the callback for the watchpoint. 252 void SetWatchpointCommandCallback(WatchpointOptions *wp_options, 253 const char *oneliner) { 254 std::unique_ptr<WatchpointOptions::CommandData> data_ap( 255 new WatchpointOptions::CommandData()); 256 257 // It's necessary to set both user_source and script_source to the 258 // oneliner. The former is used to generate callback description (as in 259 // watchpoint command list) while the latter is used for Python to 260 // interpret during the actual callback. 261 data_ap->user_source.AppendString(oneliner); 262 data_ap->script_source.assign(oneliner); 263 data_ap->stop_on_error = m_options.m_stop_on_error; 264 265 auto baton_sp = 266 std::make_shared<WatchpointOptions::CommandBaton>(std::move(data_ap)); 267 wp_options->SetCallback(WatchpointOptionsCallbackFunction, baton_sp); 268 } 269 270 static bool 271 WatchpointOptionsCallbackFunction(void *baton, 272 StoppointCallbackContext *context, 273 lldb::user_id_t watch_id) { 274 bool ret_value = true; 275 if (baton == nullptr) 276 return true; 277 278 WatchpointOptions::CommandData *data = 279 (WatchpointOptions::CommandData *)baton; 280 StringList &commands = data->user_source; 281 282 if (commands.GetSize() > 0) { 283 ExecutionContext exe_ctx(context->exe_ctx_ref); 284 Target *target = exe_ctx.GetTargetPtr(); 285 if (target) { 286 CommandReturnObject result; 287 Debugger &debugger = target->GetDebugger(); 288 // Rig up the results secondary output stream to the debugger's, so the 289 // output will come out synchronously if the debugger is set up that 290 // way. 291 292 StreamSP output_stream(debugger.GetAsyncOutputStream()); 293 StreamSP error_stream(debugger.GetAsyncErrorStream()); 294 result.SetImmediateOutputStream(output_stream); 295 result.SetImmediateErrorStream(error_stream); 296 297 CommandInterpreterRunOptions options; 298 options.SetStopOnContinue(true); 299 options.SetStopOnError(data->stop_on_error); 300 options.SetEchoCommands(false); 301 options.SetPrintResults(true); 302 options.SetAddToHistory(false); 303 304 debugger.GetCommandInterpreter().HandleCommands(commands, &exe_ctx, 305 options, result); 306 result.GetImmediateOutputStream()->Flush(); 307 result.GetImmediateErrorStream()->Flush(); 308 } 309 } 310 return ret_value; 311 } 312 313 class CommandOptions : public Options { 314 public: 315 CommandOptions() 316 : Options(), m_use_commands(false), m_use_script_language(false), 317 m_script_language(eScriptLanguageNone), m_use_one_liner(false), 318 m_one_liner(), m_function_name() {} 319 320 ~CommandOptions() override = default; 321 322 Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, 323 ExecutionContext *execution_context) override { 324 Status error; 325 const int short_option = m_getopt_table[option_idx].val; 326 327 switch (short_option) { 328 case 'o': 329 m_use_one_liner = true; 330 m_one_liner = option_arg; 331 break; 332 333 case 's': 334 m_script_language = (lldb::ScriptLanguage)OptionArgParser::ToOptionEnum( 335 option_arg, GetDefinitions()[option_idx].enum_values, 336 eScriptLanguageNone, error); 337 338 m_use_script_language = (m_script_language == eScriptLanguagePython || 339 m_script_language == eScriptLanguageDefault); 340 break; 341 342 case 'e': { 343 bool success = false; 344 m_stop_on_error = 345 OptionArgParser::ToBoolean(option_arg, false, &success); 346 if (!success) 347 error.SetErrorStringWithFormat( 348 "invalid value for stop-on-error: \"%s\"", 349 option_arg.str().c_str()); 350 } break; 351 352 case 'F': 353 m_use_one_liner = false; 354 m_use_script_language = true; 355 m_function_name.assign(option_arg); 356 break; 357 358 default: 359 break; 360 } 361 return error; 362 } 363 364 void OptionParsingStarting(ExecutionContext *execution_context) override { 365 m_use_commands = true; 366 m_use_script_language = false; 367 m_script_language = eScriptLanguageNone; 368 369 m_use_one_liner = false; 370 m_stop_on_error = true; 371 m_one_liner.clear(); 372 m_function_name.clear(); 373 } 374 375 llvm::ArrayRef<OptionDefinition> GetDefinitions() override { 376 return llvm::makeArrayRef(g_watchpoint_command_add_options); 377 } 378 379 // Instance variables to hold the values for command options. 380 381 bool m_use_commands; 382 bool m_use_script_language; 383 lldb::ScriptLanguage m_script_language; 384 385 // Instance variables to hold the values for one_liner options. 386 bool m_use_one_liner; 387 std::string m_one_liner; 388 bool m_stop_on_error; 389 std::string m_function_name; 390 }; 391 392 protected: 393 bool DoExecute(Args &command, CommandReturnObject &result) override { 394 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 395 396 if (target == nullptr) { 397 result.AppendError("There is not a current executable; there are no " 398 "watchpoints to which to add commands"); 399 result.SetStatus(eReturnStatusFailed); 400 return false; 401 } 402 403 const WatchpointList &watchpoints = target->GetWatchpointList(); 404 size_t num_watchpoints = watchpoints.GetSize(); 405 406 if (num_watchpoints == 0) { 407 result.AppendError("No watchpoints exist to have commands added"); 408 result.SetStatus(eReturnStatusFailed); 409 return false; 410 } 411 412 if (!m_options.m_use_script_language && 413 !m_options.m_function_name.empty()) { 414 result.AppendError("need to enable scripting to have a function run as a " 415 "watchpoint command"); 416 result.SetStatus(eReturnStatusFailed); 417 return false; 418 } 419 420 std::vector<uint32_t> valid_wp_ids; 421 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 422 valid_wp_ids)) { 423 result.AppendError("Invalid watchpoints specification."); 424 result.SetStatus(eReturnStatusFailed); 425 return false; 426 } 427 428 result.SetStatus(eReturnStatusSuccessFinishNoResult); 429 const size_t count = valid_wp_ids.size(); 430 for (size_t i = 0; i < count; ++i) { 431 uint32_t cur_wp_id = valid_wp_ids.at(i); 432 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 433 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 434 // Sanity check wp first. 435 if (wp == nullptr) 436 continue; 437 438 WatchpointOptions *wp_options = wp->GetOptions(); 439 // Skip this watchpoint if wp_options is not good. 440 if (wp_options == nullptr) 441 continue; 442 443 // If we are using script language, get the script interpreter in order 444 // to set or collect command callback. Otherwise, call the methods 445 // associated with this object. 446 if (m_options.m_use_script_language) { 447 // Special handling for one-liner specified inline. 448 if (m_options.m_use_one_liner) { 449 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 450 wp_options, m_options.m_one_liner.c_str()); 451 } 452 // Special handling for using a Python function by name instead of 453 // extending the watchpoint callback data structures, we just 454 // automatize what the user would do manually: make their watchpoint 455 // command be a function call 456 else if (!m_options.m_function_name.empty()) { 457 std::string oneliner(m_options.m_function_name); 458 oneliner += "(frame, wp, internal_dict)"; 459 m_interpreter.GetScriptInterpreter()->SetWatchpointCommandCallback( 460 wp_options, oneliner.c_str()); 461 } else { 462 m_interpreter.GetScriptInterpreter() 463 ->CollectDataForWatchpointCommandCallback(wp_options, result); 464 } 465 } else { 466 // Special handling for one-liner specified inline. 467 if (m_options.m_use_one_liner) 468 SetWatchpointCommandCallback(wp_options, 469 m_options.m_one_liner.c_str()); 470 else 471 CollectDataForWatchpointCommandCallback(wp_options, result); 472 } 473 } 474 } 475 476 return result.Succeeded(); 477 } 478 479 private: 480 CommandOptions m_options; 481 }; 482 483 //------------------------------------------------------------------------- 484 // CommandObjectWatchpointCommandDelete 485 //------------------------------------------------------------------------- 486 487 class CommandObjectWatchpointCommandDelete : public CommandObjectParsed { 488 public: 489 CommandObjectWatchpointCommandDelete(CommandInterpreter &interpreter) 490 : CommandObjectParsed(interpreter, "delete", 491 "Delete the set of commands from a watchpoint.", 492 nullptr) { 493 CommandArgumentEntry arg; 494 CommandArgumentData wp_id_arg; 495 496 // Define the first (and only) variant of this arg. 497 wp_id_arg.arg_type = eArgTypeWatchpointID; 498 wp_id_arg.arg_repetition = eArgRepeatPlain; 499 500 // There is only one variant this argument could be; put it into the 501 // argument entry. 502 arg.push_back(wp_id_arg); 503 504 // Push the data for the first argument into the m_arguments vector. 505 m_arguments.push_back(arg); 506 } 507 508 ~CommandObjectWatchpointCommandDelete() override = default; 509 510 protected: 511 bool DoExecute(Args &command, CommandReturnObject &result) override { 512 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 513 514 if (target == nullptr) { 515 result.AppendError("There is not a current executable; there are no " 516 "watchpoints from which to delete commands"); 517 result.SetStatus(eReturnStatusFailed); 518 return false; 519 } 520 521 const WatchpointList &watchpoints = target->GetWatchpointList(); 522 size_t num_watchpoints = watchpoints.GetSize(); 523 524 if (num_watchpoints == 0) { 525 result.AppendError("No watchpoints exist to have commands deleted"); 526 result.SetStatus(eReturnStatusFailed); 527 return false; 528 } 529 530 if (command.GetArgumentCount() == 0) { 531 result.AppendError( 532 "No watchpoint specified from which to delete the commands"); 533 result.SetStatus(eReturnStatusFailed); 534 return false; 535 } 536 537 std::vector<uint32_t> valid_wp_ids; 538 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 539 valid_wp_ids)) { 540 result.AppendError("Invalid watchpoints specification."); 541 result.SetStatus(eReturnStatusFailed); 542 return false; 543 } 544 545 result.SetStatus(eReturnStatusSuccessFinishNoResult); 546 const size_t count = valid_wp_ids.size(); 547 for (size_t i = 0; i < count; ++i) { 548 uint32_t cur_wp_id = valid_wp_ids.at(i); 549 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 550 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 551 if (wp) 552 wp->ClearCallback(); 553 } else { 554 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", cur_wp_id); 555 result.SetStatus(eReturnStatusFailed); 556 return false; 557 } 558 } 559 return result.Succeeded(); 560 } 561 }; 562 563 //------------------------------------------------------------------------- 564 // CommandObjectWatchpointCommandList 565 //------------------------------------------------------------------------- 566 567 class CommandObjectWatchpointCommandList : public CommandObjectParsed { 568 public: 569 CommandObjectWatchpointCommandList(CommandInterpreter &interpreter) 570 : CommandObjectParsed(interpreter, "list", "List the script or set of " 571 "commands to be executed when " 572 "the watchpoint is hit.", 573 nullptr) { 574 CommandArgumentEntry arg; 575 CommandArgumentData wp_id_arg; 576 577 // Define the first (and only) variant of this arg. 578 wp_id_arg.arg_type = eArgTypeWatchpointID; 579 wp_id_arg.arg_repetition = eArgRepeatPlain; 580 581 // There is only one variant this argument could be; put it into the 582 // argument entry. 583 arg.push_back(wp_id_arg); 584 585 // Push the data for the first argument into the m_arguments vector. 586 m_arguments.push_back(arg); 587 } 588 589 ~CommandObjectWatchpointCommandList() override = default; 590 591 protected: 592 bool DoExecute(Args &command, CommandReturnObject &result) override { 593 Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get(); 594 595 if (target == nullptr) { 596 result.AppendError("There is not a current executable; there are no " 597 "watchpoints for which to list commands"); 598 result.SetStatus(eReturnStatusFailed); 599 return false; 600 } 601 602 const WatchpointList &watchpoints = target->GetWatchpointList(); 603 size_t num_watchpoints = watchpoints.GetSize(); 604 605 if (num_watchpoints == 0) { 606 result.AppendError("No watchpoints exist for which to list commands"); 607 result.SetStatus(eReturnStatusFailed); 608 return false; 609 } 610 611 if (command.GetArgumentCount() == 0) { 612 result.AppendError( 613 "No watchpoint specified for which to list the commands"); 614 result.SetStatus(eReturnStatusFailed); 615 return false; 616 } 617 618 std::vector<uint32_t> valid_wp_ids; 619 if (!CommandObjectMultiwordWatchpoint::VerifyWatchpointIDs(target, command, 620 valid_wp_ids)) { 621 result.AppendError("Invalid watchpoints specification."); 622 result.SetStatus(eReturnStatusFailed); 623 return false; 624 } 625 626 result.SetStatus(eReturnStatusSuccessFinishNoResult); 627 const size_t count = valid_wp_ids.size(); 628 for (size_t i = 0; i < count; ++i) { 629 uint32_t cur_wp_id = valid_wp_ids.at(i); 630 if (cur_wp_id != LLDB_INVALID_WATCH_ID) { 631 Watchpoint *wp = target->GetWatchpointList().FindByID(cur_wp_id).get(); 632 633 if (wp) { 634 const WatchpointOptions *wp_options = wp->GetOptions(); 635 if (wp_options) { 636 // Get the callback baton associated with the current watchpoint. 637 const Baton *baton = wp_options->GetBaton(); 638 if (baton) { 639 result.GetOutputStream().Printf("Watchpoint %u:\n", cur_wp_id); 640 result.GetOutputStream().IndentMore(); 641 baton->GetDescription(&result.GetOutputStream(), 642 eDescriptionLevelFull); 643 result.GetOutputStream().IndentLess(); 644 } else { 645 result.AppendMessageWithFormat( 646 "Watchpoint %u does not have an associated command.\n", 647 cur_wp_id); 648 } 649 } 650 result.SetStatus(eReturnStatusSuccessFinishResult); 651 } else { 652 result.AppendErrorWithFormat("Invalid watchpoint ID: %u.\n", 653 cur_wp_id); 654 result.SetStatus(eReturnStatusFailed); 655 } 656 } 657 } 658 659 return result.Succeeded(); 660 } 661 }; 662 663 //------------------------------------------------------------------------- 664 // CommandObjectWatchpointCommand 665 //------------------------------------------------------------------------- 666 667 CommandObjectWatchpointCommand::CommandObjectWatchpointCommand( 668 CommandInterpreter &interpreter) 669 : CommandObjectMultiword( 670 interpreter, "command", 671 "Commands for adding, removing and examining LLDB commands " 672 "executed when the watchpoint is hit (watchpoint 'commands').", 673 "command <sub-command> [<sub-command-options>] <watchpoint-id>") { 674 CommandObjectSP add_command_object( 675 new CommandObjectWatchpointCommandAdd(interpreter)); 676 CommandObjectSP delete_command_object( 677 new CommandObjectWatchpointCommandDelete(interpreter)); 678 CommandObjectSP list_command_object( 679 new CommandObjectWatchpointCommandList(interpreter)); 680 681 add_command_object->SetCommandName("watchpoint command add"); 682 delete_command_object->SetCommandName("watchpoint command delete"); 683 list_command_object->SetCommandName("watchpoint command list"); 684 685 LoadSubCommand("add", add_command_object); 686 LoadSubCommand("delete", delete_command_object); 687 LoadSubCommand("list", list_command_object); 688 } 689 690 CommandObjectWatchpointCommand::~CommandObjectWatchpointCommand() = default; 691